The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 22, 1993
Filed:
Sep. 23, 1991
Michael D McAninch, Hilliard, OH (US);
Richard L Holbrook, Louisville, OH (US);
Dale F Lacount, Alliance, OH (US);
Chester M Kawashige, Roseville, CA (US);
John M Crapuchettes, Cameron Park, CA (US);
James Scala, Ranco Cordova, CA (US);
The Babcock & Wilcox Company, New Orleans, LA (US);
Abstract
A method of constructing a nozzle having cooling channels comprises a shell and a liner which are formed into a body of revolution having an axis of revolution. Helical welds are formed to hold the liner and shell to each other with a channel position being defined between each pair of helical welds. Pressurized fluid which may be a gas or a liquid, is introduced between the weld pairs to outwardly bulge the material of at least one of the liner and shell to define the channels.